Stratos Koumpas
type: MusicGroup
genre: laïko
popularity: 8
followers: 22
additional property: CopyrightID
additional property: CopyrightChainExplorerURL
  type: PropertyValue
  value: https://explorer.copyrightchains.com/tx/0x571c328beeaa4841f3a2124226377329a352fd1862665f9cd70c057975edff68
additional property: OTSHash
additional property: OTSBitcoinBlock
  type: PropertyValue
  value: 954516
additional property: OTSBitcoinBlockVerifyURL
  type: PropertyValue
  value: https://blockstream.info/api/block-height/954516
additional property: OTSProofURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a2c03efa-cf2c-46d4-9139-c6237a5094fd.ots
additional property: OTSRecordURL
  type: PropertyValue
  value: https://artists.proofprofile.net/proofs/artist/a2c03efa-cf2c-46d4-9139-c6237a5094fd.json
additional property: OTSVerificationAPI
  type: PropertyValue
  value: https://artists.proofprofile.net/api/v1/bot/ots/verify/artist/a2c03efa-cf2c-46d4-9139-c6237a5094fd
additional property: OTSTimestamp
  type: PropertyValue
  value: 2026-06-20T07:04:44Z
additional property: OTSCanonicalRecord
  type: PropertyValue
  value: {"copyright_id":"0x571c328beeaa4841f3a2124226377329a352fd1862665f9cd70c057975edff68","name":"Stratos Koumpas","registered_at":"2026-06-20T06:01:16Z","symbol":"NIM1537299","token_address":"0xc9acf9a440f4f49af6b1bfa148f6f36fc2019968","type":"artist","uuid":"a2c03efa-cf2c-46d4-9139-c6237a5094fd"}
additional property: OTSVerifyInstructions
  type: PropertyValue
  value: 1. Compute SHA-256 of OTSCanonicalRecord value → must equal OTSHash 2. Open OTSProofURL → extract Bitcoin block number → must equal OTSBitcoinBlock 3. GET OTSBitcoinBlockVerifyURL → returns the Bitcoin block hash at height OTSBitcoinBlock; GET https://blockstream.info/api/block/{that hash} → its timestamp must match OTSTimestamp 4. Read CopyrightID inside OTSCanonicalRecord → must equal the CopyrightID above 5. GET OTSVerificationAPI → pre-computed 6-check result from server 6. If all match: this entity was registered on CopyrightChains at OTSTimestamp, independently verifiable on Bitcoin Note: an OTS proof may carry multiple Bitcoin attestations; OTSBitcoinBlock is the earliest confirmed one — a later attestation inside the proof corroborates it and is not a mismatch
subject of: OpenTimestamps Proof of Existence
  type: DigitalDocument
  encoding format: application/vnd.opentimestamps.ots
  description: Dual-chain trust anchor. Chain 1 (CopyrightChains): CopyrightID 0x571c328beeaa4841f3a2124226377329a352fd1862665f9cd70c057975edff68. Chain 2 (Bitcoin): anchored in block 954516 (2026-06-20T07:04:44Z). Bridge: the canonical record inside this Bitcoin proof contains the same CopyrightID. Verify: download https://artists.proofprofile.net/proofs/artist/a2c03efa-cf2c-46d4-9139-c6237a5094fd.json and https://artists.proofprofile.net/proofs/artist/a2c03efa-cf2c-46d4-9139-c6237a5094fd.ots, run `ots verify -f record.json proof.ots` (https://opentimestamps.org).
  date published: 2026-06-20T07:04:44Z
  text: {"copyright_id":"0x571c328beeaa4841f3a2124226377329a352fd1862665f9cd70c057975edff68","name":"Stratos Koumpas","registered_at":"2026-06-20T06:01:16Z","symbol":"NIM1537299","token_address":"0xc9acf9a440f4f49af6b1bfa148f6f36fc2019968","type":"artist","uuid":"a2c03efa-cf2c-46d4-9139-c6237a5094fd"}
album: Eksodo Kindynou
  type: MusicAlbum
  date published: 2024-06-10
album: Telika
  type: MusicAlbum
  date published: 2025-07-07